<template>
  <div class="panel-tab__content">
    <div class="panel-tab__content--title">
      <span><el-icon style="margin-right: 8px; color: #555555">
          <Menu />
        </el-icon>消息列表</span>
      <el-button type="primary"
        :icon="Plus"
        @click="openModel('message')">创建新消息</el-button>
    </div>
    <el-table :data="messageList"
      border>
      <el-table-column type="index"
        label="序号"
        width="100px" />
      <el-table-column label="消息ID"
        prop="id"
        max-width="300px"
        show-overflow-tooltip />
      <el-table-column label="消息名称"
        prop="name"
        max-width="300px"
        show-overflow-tooltip />
    </el-table>
    <div class="panel-tab__content--title"
      style="padding-top: 8px; margin-top: 8px; border-top: 1px solid #eeeeee">
      <span><el-icon style="margin-right: 8px; color: #555555">
          <Menu />
        </el-icon>信号列表</span>
      <el-button type="primary"
        :icon="Plus"
        @click="openModel('signal')">创建新信号</el-button>
    </div>
    <el-table :data="signalList"
      border>
      <el-table-column type="index"
        label="序号"
        width="100px" />
      <el-table-column label="信号ID"
        prop="id"
        max-width="300px"
        show-overflow-tooltip />
      <el-table-column label="信号名称"
        prop="name"
        max-width="300px"
        show-overflow-tooltip />
    </el-table>

    <el-dialog v-model="modelVisible"
      :title="modelConfig.title"
      :close-on-click-modal="false"
      width="400px"
      append-to-body
      destroy-on-close>
      <el-form :model="modelObjectForm"
        label-width="100px"
        @submit.prevent>
        <el-form-item :label="modelConfig.idLabel">
          <el-input v-model="modelObjectForm.id"
            clearable />
        </el-form-item>
        <el-form-item :label="modelConfig.nameLabel">
          <el-input v-model="modelObjectForm.name"
            clearable />
        </el-form-item>
      </el-form>
      <template v-slot:footer>
        <el-button @click="modelVisible = false">取 消</el-button>
        <el-button type="primary"
          @click="addNewObject">保 存</el-button>
      </template>
    </el-dialog>
  </div>
</template>
<script>
import { Plus } from '@element-plus/icons-vue'
export default {
  name: 'SignalAndMassage',
  setup() {
    return {
      Plus
    }
  },
  data() {
    return {
      signalList: [],
      messageList: [],
      modelVisible: false,
      modelType: '',
      modelObjectForm: {}
    };
  },
  computed: {
    modelConfig() {
      if (this.modelType === 'message') {
        return { title: '创建消息', idLabel: '消息ID', nameLabel: '消息名称' };
      } else {
        return { title: '创建信号', idLabel: '信号ID', nameLabel: '信号名称' };
      }
    }
  },
  mounted() {
    this.initDataList();
  },
  methods: {
    initDataList() {
      this.rootElements = window.bpmnInstances.modeler.getDefinitions().rootElements;
      this.messageIdMap = {};
      this.signalIdMap = {};
      this.messageList = [];
      this.signalList = [];
      this.rootElements.forEach(el => {
        if (el.$type === 'bpmn:Message') {
          this.messageIdMap[el.id] = true;
          this.messageList.push({ ...el });
        }
        if (el.$type === 'bpmn:Signal') {
          this.signalIdMap[el.id] = true;
          this.signalList.push({ ...el });
        }
      });
    },
    openModel(type) {
      this.modelType = type;
      this.modelObjectForm = {};
      this.modelVisible = true;
    },
    addNewObject() {
      if (this.modelType === 'message') {
        if (this.messageIdMap[this.modelObjectForm.id]) {
          return this.$message.error('该消息已存在，请修改id后重新保存');
        }
        const messageRef = window.bpmnInstances.moddle.create('bpmn:Message', this.modelObjectForm);
        this.rootElements.push(messageRef);
      } else {
        if (this.signalIdMap[this.modelObjectForm.id]) {
          return this.$message.error('该信号已存在，请修改id后重新保存');
        }
        const signalRef = window.bpmnInstances.moddle.create('bpmn:Signal', this.modelObjectForm);
        this.rootElements.push(signalRef);
      }
      this.modelVisible = false;
      this.initDataList();
    }
  }
};
</script>
